pata_hpt{37x,3x2n}: add debounce delay to cable detection methods

[safe/jmp/linux-2.6] / drivers / ata / sata_nv.c

diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 86a4058..1eb4e02 100644 (file)
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -1594,9 +1594,21 @@ static int nv_hardreset(struct ata_link *link, unsigned int *class,
            !ata_dev_enabled(link->device))
                sata_link_hardreset(link, sata_deb_timing_hotplug, deadline,
                                    NULL, NULL);
-       else if (!(ehc->i.flags & ATA_EHI_QUIET))
-               ata_link_printk(link, KERN_INFO,
-                               "nv: skipping hardreset on occupied port\n");
+       else {
+               const unsigned long *timing = sata_ehc_deb_timing(ehc);
+               int rc;
+
+               if (!(ehc->i.flags & ATA_EHI_QUIET))
+                       ata_link_printk(link, KERN_INFO, "nv: skipping "
+                                       "hardreset on occupied port\n");
+
+               /* make sure the link is online */
+               rc = sata_link_resume(link, timing, deadline);
+               /* whine about phy resume failure but proceed */
+               if (rc && rc != -EOPNOTSUPP)
+                       ata_link_printk(link, KERN_WARNING, "failed to resume "
+                                       "link (errno=%d)\n", rc);
+       }
 
        /* device signature acquisition is unreliable */
        return -EAGAIN;